CN210905684U - Denitration reactor capable of replacing catalyst on line - Google Patents
Denitration reactor capable of replacing catalyst on line Download PDFInfo
- Publication number
- CN210905684U CN210905684U CN201921768517.XU CN201921768517U CN210905684U CN 210905684 U CN210905684 U CN 210905684U CN 201921768517 U CN201921768517 U CN 201921768517U CN 210905684 U CN210905684 U CN 210905684U
- Authority
- CN
- China
- Prior art keywords
- catalyst
- reactor
- denitration
- bin
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a change catalyst denitration reactor on line belongs to industry tail gas clean-up equipment technical field, has solved the catalyst and has gone out the problem and change inconvenient problem on line, and its technical essential is: the reactor is a bin-divided denitration reactor, a bin-divided structure is adopted, the reactor is divided into a plurality of bins, the internal structure of each bin is the same, each bin is also provided with a plurality of filling layers, and each filling layer in each bin is filled with a catalyst module; the catalyst module is in hard contact with the reactor, so that air leakage of the reactor is prevented, and the air leakage rate is lower than 2%; a bin-dividing structure is adopted, and each bin independently operates, so that the catalyst module is replaced on line, and the normal operation of the whole device is not influenced; the replaced catalyst can be recycled after treatment, so that the running cost of the device is reduced; the reactor platform is provided with a guide rail, so that the catalyst replacement speed is accelerated.
Description
Technical Field
The utility model relates to an industrial tail gas purification equipment technical field specifically relates to a change catalyst denitration reactor on line.
Background
China is a big coal-fired country, and a certain amount of dust and SO are generated in the production processes of coal firing, coking, glass and the like2Nitrogen Oxide (NO)X) Harmful metal elements and the like, NO in flue gasXEmission ratio of (3)2The harm to environment is more serious, and a large amount of Nitrogen Oxide (NO)X) The emission of the nitrogen oxide causes a series of environmental problems such as acid rain, photochemical smog, ozone layer damage, greenhouse effect and the like, particularly the serious haze phenomenon which appears in most parts of the country in recent years is the root of Nitrogen Oxide (NO)X) To control atmospheric Nitrogen Oxides (NO)X) The emission of the nitrogen-containing gas causes global attention and is also the key point and the difficult point of protection in the atmospheric environment in China at present, so that NO is generatedXIs particularly important.
At present, NO is available in the domestic marketXThe treatment mainly adopts an SCR denitration technology, wherein the SCR denitration can be divided into high-temperature denitration (the temperature is above 320 ℃), medium-low-temperature denitration (the temperature is 180-300 ℃) and ultralow-temperature denitration (the temperature is within 180 ℃), the high-temperature denitration is well applied in industry, and the medium-low-temperature denitration is widely applied in industry, but the temperature is lower than 280 ℃ and SO is contained2There are many problems in existence, and ultra-low temperature denitration is currently in a pilot plant stage.
At present, the catalyst used for domestic medium-low temperature SCR denitration comprises a vanadium-titanium system catalyst and a manganese-based catalyst, and the ultralow temperature catalyst mainly comprises a manganese-based catalyst. The vanadium-titanium system catalyst is most widely applied at present, the lowest activation temperature is 180 ℃, the normal industrial application temperature is required to be more than 220 ℃, when the flue gas contains sulfur, ammonium sulfate can be generated to be attached to the surface of the catalyst, the denitration efficiency is reduced, the core raw materials of the vanadium-titanium system catalyst are vanadium and titanium, and the cost is higher. The manganese-based catalyst has high low-temperature denitration activity, can still maintain the denitration efficiency of more than 80 percent at the temperature of 150 ℃, and the core raw material of the manganese-based catalyst is manganese and zeoliteThe cost is low, but the manganese-based catalyst has the problem of ammonium sulfate salt when the sulfur is contained at low temperature, and the flue gas contains SO3Manganese sulfate is produced, resulting in permanent deactivation of the catalyst.
The manganese-based catalyst has the characteristics of high efficiency and low cost under the ultralow temperature working condition, SO the manganese-based catalyst has very wide prospect in the ultralow temperature desorption field, but SO is generated when the flue gas contains sulfur3Manganese sulfate is generated by a violent reaction in the catalyst, and the catalyst is permanently deactivated. In order to solve the problems, an on-line catalyst replacement denitration reactor is provided, which is used for rapidly replacing a catalyst which loses activity under the condition that the device does not stop, and conveniently reactivating the deactivated catalyst, so that the purposes of recycling the catalyst and reducing hazardous waste discharge are achieved. So as to solve the problem that the online replacement of the catalyst is inconvenient when the catalyst is out of service.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides an aim at provides an online catalyst denitration reactor of changing to solve the problem among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a denitration reactor capable of replacing a catalyst on line comprises a reactor, wherein the reactor is a bin-divided denitration reactor and adopts a bin-divided structure, the reactor is divided into a plurality of bins, the internal structure of each bin is the same, each bin is provided with a plurality of filling layers, and each filling layer in each bin is filled with a catalyst module;
the utility model discloses a denitration catalyst, including catalyst module, flower board, fixed frame, shrouding, fixed frame are connected to the flower board welding, and the one side of catalyst module is provided with the shrouding, and the utility model discloses a denitration catalyst module is characterized in that the storehouse one side of reactor is reserved has the catalyst filling mouth that is used for installing and demolishs catalyst module, single catalyst module include granule catalyst, denitration cage frame subassembly, flower board, bearing frame, fixed frame, shrouding and handle, every catalyst module evenly arranged a plurality of denitration cage frame subassemblies on the flower board, the flower board welding is on bearing frame, and the denitration cage.
As a further scheme of the utility model, it is sealed between denitration cage subassembly and the card, full weld between card and the bearing frame.
As the utility model discloses further scheme, when catalyst module packed into the reactor, shrouding on the catalyst module and reactor outer wall adoption bolt fastening, shrouding and reactor outer wall contact are sealed, are equipped with the sealing layer between shrouding and the reactor.
As a further aspect of the present invention, the sealing plate of the catalyst module is provided with a handle, and the handle is mounted on the bearing frame.
As a further aspect of the present invention, the inlet and outlet of the bin are provided with valves.
As a further aspect of the present invention, the reactor is mounted on a support steel structure.
As a further scheme of the utility model, still set up catalyst crossbeam, sealed dog and sealing strip in every storehouse, inside placing the reactor in the catalyst crossbeam, the both sides of catalyst module's bearing crossbeam and the catalyst crossbeam hard contact of storehouse interior catalyst filling port both sides, sealed dog and sealing strip setting are on the storehouse inner wall of the reactor that the catalyst filling port is opposite.
As a further aspect of the present invention, the sealing plate and the catalyst beam are welded and fixed.
As a further scheme of the utility model, the catalyst of reactor loads a mouthful one side and is provided with catalyst transportation frame, and catalyst transportation frame welds with the support steel construction mutually, is equipped with on the catalyst transportation frame with catalyst module every load the layer for the guide rail.
To sum up, compared with the prior art, the embodiment of the utility model has the following beneficial effects:
the utility model discloses a change catalyst denitration reactor on line, when satisfying that the denitration catalyst is online, quick replacement, simplify the device structure, reduce the investment.
1. The catalyst module is in hard contact with the reactor, so that air leakage of the reactor is prevented, and the air leakage rate is lower than 2%.
2. And a bin-dividing structure is adopted, and each bin independently operates, so that the catalyst module is replaced on line, and the normal operation of the whole device is not influenced.
3. The replaced catalyst can be recycled after treatment, and the running cost of the device is reduced.
4. The reactor platform is provided with a guide rail, so that the catalyst replacement speed is accelerated.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a front view of the denitration reactor with the catalyst replaced on-line.
Figure 2 is utility model's a left side view of changing catalyst denitration reactor on line.
Fig. 3 is a front view of the catalyst module in the on-line replacement catalyst denitration reactor of the utility model.
Fig. 4 is a left side view of the catalyst module in the on-line replacement catalyst denitration reactor of the utility model.
Fig. 5 is a top view of the catalyst module in the on-line replacement catalyst denitration reactor of the utility model.
Reference numerals: the method comprises the following steps of 1-a reactor, 2-a bin, 3-a filling layer, 4-a catalyst module, 5-a granular catalyst, 6-a denitration cage assembly, 7-a pattern plate, 8-a bearing frame, 9-a fixed frame, 10-a sealing plate, 11-a handle, 12-a catalyst filling opening, 13-a valve, 14-a supporting steel structure, 15-a catalyst beam, 16-a sealing block, 17-a sealing strip, 18-a catalyst transfer frame and 19-a guide rail.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 2, an on-line catalyst replacement denitration reactor includes a reactor 1, the reactor 1 is a divided-bin denitration reactor, a divided-bin structure is adopted, the reactor 1 is divided into a plurality of bins 2, the internal structure of each bin 2 is the same, each bin 2 is provided with a plurality of filling layers 3, and each filling layer 3 in each bin 2 is filled with a catalyst module 4.
Referring to fig. 3 to 5, each of the catalyst modules 4 includes a granular catalyst 5, a denitration cage assembly 6, a pattern plate 7, a bearing frame 8, a fixing frame 9, a sealing plate 10 and a handle 11, each of the catalyst modules 4 is uniformly provided with a plurality of denitration cage assemblies 6 on the pattern plate 7, the denitration cage assemblies 6 and the pattern plate 7 are sealed, and the pattern plate 7 and the bearing frame 8 are fully welded to ensure that the pattern plate 7 is airtight up and down;
the denitration cage assembly 6 is filled with the granular catalyst 5, the denitration cage assembly 6 is connected with the fixed frame 9, and the fixed frame 9 well fixes the denitration cage assembly 6 to prevent the catalyst module 4 from shaking in the replacement process; a sealing plate 10 is arranged on one side of the catalyst module 4, and when the catalyst module 4 is loaded into the reactor 1, the sealing plate 10 can be in contact with and sealed with the outer wall of the reactor 1; the shrouding 10 outside of catalyst module 4 is equipped with handle 11, and handle 11 is installed on bearing frame 8 for drag out granule catalyst 5 when changing catalyst module 4.
A catalyst filling port 12 is reserved on one side of the bin 2 of the reactor 1 and used for installing and dismantling the catalyst module 4; the inlet and outlet of each bin 2 are provided with valves 13 for cutting off flue gas when the catalyst is replaced, so that excessive air is prevented from leaking into the reactor 1;
reactor 1 installs on supporting steel structure 14, and outside whole reactor 1 detached self supporting steel structure 14, still set up catalyst crossbeam 15, sealed dog 16 and sealing strip 17 in every bin 2, place reactor 1 inside in catalyst crossbeam 15, when catalyst module 4 was placed in the reactor 1, catalyst crossbeam 15 hard contact of the both sides of the bearing crossbeam of catalyst module 4 and the catalyst crossbeam 15 of catalyst loading mouth 12 both sides in bin 2, catalyst crossbeam 15 plays the supporting role, and the contact surface of bearing crossbeam and catalyst crossbeam 15 in bin 2 needs the preparation to be leveled simultaneously, guarantees to play the sealing effect and reduces the resistance of catalyst module 4 when taking out reactor 1 and propelling reactor 1 when hard contact.
The sealing stopper 16 and the sealing strip 17 are arranged on the bearing frame 8 of the catalyst module 4, specifically, the sealing stopper 16 and the sealing strip 17 are arranged on a bearing beam opposite to the catalyst filling port 12, when the catalyst module 4 pushes the reactor 1, the sealing stopper 16 is used for limiting the position of the catalyst module 4, and the sealing strip 17 is made of a high-temperature-resistant soft material and is in soft contact with the catalyst module 4, so that the catalyst module 4 is prevented from leaking air up and down.
After the catalyst module 4 is installed in the reactor 1, the closing plate 10 on the catalyst module 4 is fixed to the outer wall of the reactor 1 by bolts, and the contact part of the closing plate 10 and the outer wall of the reactor 1 needs to take sealing measures to prevent the gas leakage of the reactor 1.
The sealing plate 10 and the catalyst beam 15 are fixed by welding, so that the catalyst module 4 cannot leak air up and down after being installed, the position of the bearing beams on two sides of the reactor 1 between the end of the catalyst filling port 12 and the module sealing plate 10 is only left in the place where the air leakage needs to be considered, and high-temperature-resistant soft materials need to be added and clamped between the sealing plate 10 and the end of the bearing beams.
A catalyst transfer frame 18 is arranged on one side of a catalyst filling port 12 of the reactor 1, the catalyst transfer frame 18 is welded with a supporting steel structure 14, and a guide rail 19 corresponding to each filling layer 3 of the catalyst module 4 is arranged on the catalyst transfer frame 18 and used for the pouring and transporting work of catalyst filling and dismantling.
The catalyst module 4 is installed by adopting a hydraulic device, and the catalyst placed on the guide rail 19 is pushed into the reactor 1; the catalyst module 4 is removed and the module is pulled out of the reactor 1 by a chain block.
The embodiment of the utility model provides an in, sealed dog 16 and sealing strip 17 can also set up on 2 inner walls in the bin of reactor 1, and is concrete, and sealed dog 16 sets up on 12 opposite inner walls of mouth are filled to the catalyst of reactor 1 with sealing strip 17, and when catalyst module 4 impels reactor 1, sealed dog 16 is used for restricting catalyst module 4's position, and sealing strip 17 adopts high temperature resistant soft nature material with 4 soft contacts of catalyst module, prevent from leaking gas about catalyst module 4.
The utility model discloses an online catalyst denitration reactor of changing when satisfying denitration catalyst online, quick replacement, simplifies the device structure, reduces the investment, has avoidd catalyst out of question and online inconvenient problem of changing.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongings the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. Those skilled in the art will appreciate that other embodiments of the invention can be devised which do not require inventive effort and which fall within the scope of the present invention.
Claims (9)
1. An online catalyst replacement denitration reactor comprises a reactor (1) and is characterized in that the reactor (1) is a bin-divided denitration reactor and adopts a bin-divided structure, the reactor (1) is divided into a plurality of bins (2), the internal structure of each bin (2) is the same, each bin (2) is provided with a plurality of filling layers (3), and each filling layer (3) in each bin (2) is filled with a catalyst module (4);
storehouse (2) one side of reactor (1) is reserved and is used for installing and demolish catalyst module (4) catalyst filling opening (12), single catalyst module (4) including granule catalyst (5), denitration cage subassembly (6), card (7), bearing frame (8), fixed frame (9), shrouding (10) and handle (11), every catalyst module (4) evenly arranged a plurality of denitration cage subassembly (6) on card (7), card (7) welding is on bearing frame (8), denitration cage subassembly (6) are built-in to be filled with granule catalyst (5), fixed frame (9) are connected in denitration cage subassembly (6), one side of catalyst module (4) is provided with shrouding (10).
2. The on-line catalyst replacement denitration reactor according to claim 1, wherein the denitration cage assembly (6) is sealed with the pattern plate (7), and the pattern plate (7) is fully welded with the bearing frame (8).
3. The denitration reactor with the catalyst replaced on line as claimed in claim 2, wherein when the catalyst module (4) is installed in the reactor (1), the sealing plate (10) on the catalyst module (4) is fixed with the outer wall of the reactor (1) by bolts, the sealing plate (10) is in contact sealing with the outer wall of the reactor (1), and a sealing layer is arranged between the sealing plate (10) and the reactor (1).
4. An on-line catalyst replacement denitration reactor according to claim 3, wherein a handle (11) is provided outside the sealing plate (10) of the catalyst module (4), and the handle (11) is installed on the load-bearing frame (8).
5. The on-line catalyst replacement denitration reactor according to claim 4, wherein an inlet and an outlet of each bin (2) are provided with a valve (13).
6. The on-line catalyst replacement denitration reactor according to claim 5, wherein the reactor (1) is installed on a supporting steel structure (14).
7. The denitration reactor of claim 6, further comprising a catalyst beam (15), a sealing stopper (16) and a sealing strip (17) in each chamber (2), wherein the catalyst beam (15) is arranged in the reactor (1), two sides of the bearing beam of the catalyst module (4) are in hard contact with the catalyst beams (15) on two sides of the catalyst filling port (12) in the chamber (2), and the sealing stopper (16) and the sealing strip (17) are arranged on the inner wall of the chamber (2) of the reactor (1) opposite to the catalyst filling port (12).
8. The on-line catalyst replacement denitration reactor according to claim 7, wherein the sealing plate (10) is fixed to the catalyst cross beam (15) by welding.
9. The denitration reactor by replacing catalyst on line according to any one of claims 1 to 8, wherein a catalyst transfer frame (18) is provided at one side of the catalyst filling port (12) of the reactor (1), the catalyst transfer frame (18) is welded to the supporting steel structure (14), and a guide rail (19) opposite to each filling layer (3) of the catalyst module (4) is provided on the catalyst transfer frame (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921768517.XU CN210905684U (en) | 2019-10-22 | 2019-10-22 | Denitration reactor capable of replacing catalyst on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921768517.XU CN210905684U (en) | 2019-10-22 | 2019-10-22 | Denitration reactor capable of replacing catalyst on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210905684U true CN210905684U (en) | 2020-07-03 |
Family
ID=71360691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921768517.XU Active CN210905684U (en) | 2019-10-22 | 2019-10-22 | Denitration reactor capable of replacing catalyst on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210905684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116099357A (en) * | 2023-04-15 | 2023-05-12 | 山西清凯环保工程有限公司 | SCR denitration system |
-
2019
- 2019-10-22 CN CN201921768517.XU patent/CN210905684U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116099357A (en) * | 2023-04-15 | 2023-05-12 | 山西清凯环保工程有限公司 | SCR denitration system |
| CN116099357B (en) * | 2023-04-15 | 2023-06-09 | 山西清凯环保工程有限公司 | SCR denitration system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110585920A (en) | Denitration reactor capable of replacing catalyst on line | |
| CN104474895B (en) | The device and method of the fixing bed on-line regeneration low-temperature denitration catalyst of swinging | |
| CN210544365U (en) | A reactant removes bed for flue gas desulfurization denitration treatment system | |
| CN210905684U (en) | Denitration reactor capable of replacing catalyst on line | |
| CN102658013A (en) | Low-temperature selective catalytic reduction (SCR) fixed bed flue gas denitrification device and method for coal-fired boiler | |
| CN104826489A (en) | Activated carbon and low temperature catalyst-based combined desulfurization denitration fluidized bed device | |
| CN205288101U (en) | Low temperature SCR reactor, flue gas low temperature deNOx systems and flue gas processing system | |
| CN204159215U (en) | A kind of box effluent reactor for low-temperature denitration of flue gas | |
| CN210079219U (en) | Active coke combined desulfurization and denitrification system | |
| CN108295657A (en) | A kind of warehouse separated type denitrated reactor of low temperature and denitration method for flue gas | |
| CN103405991B (en) | Energy-efficient comprehensive desulfurization and purification system and method for active coke of different flue gases | |
| CN105327619A (en) | Low-temperature SCR reactor, smoke low-temperature denitration system, smoke treatment system and smoke treatment method | |
| CN206688512U (en) | A kind of gas cleaning module for loaded particles catalyst or adsorbent | |
| CN202590630U (en) | Coal-fired boiler low-temperature selective catalytic reduction (SCR) fixed bed smoke denitration device | |
| CN105148681B (en) | A kind of agglomerates of sintered pellets flue gas absorption and blanking device | |
| CN210473618U (en) | Low temperature SCR denitrification facility in steel rolling heating furnace flue gas dry desulfurization | |
| CN104923071B (en) | A kind of low-temperature denitration reactor | |
| CN204395780U (en) | A kind of combined desulfurization and denitration fluidized bed plant based on active carbon and low temperature catalyst | |
| CN206597455U (en) | One kind is applied to low-temperature flue gas desulphurization denitration equipment | |
| CN100348298C (en) | Process for eliminating SOx in flue by activated carbon based adsorbent | |
| CN204395725U (en) | The horizontal desulfurizing tower of a kind of active carbon | |
| CN106964213A (en) | A kind of modular radial dedusting Benitration reactor | |
| CN206064163U (en) | Vertical two-stage nitration cylindricality modularity flue gas desulfurization and denitrification absorption/regenerating unit | |
| CN209155532U (en) | A kind of sloping platform formula charcoal base catalysis method regenerator bypass buffer unit | |
| CN210285698U (en) | Active carbon not damaged transport system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |